Does the iPhone have a kids mode?
Short answer: not really. Android has a guest user, Fire tablets have Amazon Kids, and both let you hand the device over and take it back cleanly. iOS has no single switch that does that. What it does have is three separate features that each solve part of the problem, and it helps to know exactly where each one stops.
Guided Access: one app, and only one app
Guided Access is the closest thing built in. Triple-click the side button and the phone locks into whatever app is open; getting out needs your passcode or Face ID. It's genuinely solid for what it does, and it can even disable parts of the screen so small fingers can't hit a menu. The catch is in the name of the limitation, not the feature: it locks to exactly one app. The moment your child wants to leave the drawing app and open a different game, you have to unlock, switch, and re-lock. For a four-year-old on a plane that's fine. For a longer handover it turns you into the app switcher.
Screen Time: a budget, not a wall
Screen Time is designed around the assumption that the phone belongs to the person being limited. It counts hours, enforces downtime, and can block whole categories. That's the right shape for a teenager with their own iPhone, and the wrong shape for the fifteen minutes you hand over your phone in a restaurant. It also isn't instant — you're editing limits and schedules, not flipping a switch, and undoing it afterward is the same amount of work in reverse.
Content & Privacy Restrictions: the quiet one that matters most
Buried in Settings › Screen Time › Content & Privacy Restrictions is the switch that stops in-app purchases and app installs. If you only ever change one setting before handing your phone to a child, make it this one — it's what prevents the story that ends with a £400 gem purchase. It doesn't hide anything or stop anyone wandering into your messages, but it removes the expensive failure mode in about thirty seconds.
The gap all three leave
None of them answers the actual question a parent has, which is: can I hand over this specific phone, right now, and have only a few chosen things work? Guided Access allows one app. Screen Time governs a whole day. Restrictions block categories. What's missing is a temporary mode with an allow-list — hand it over, they get these five things, everything else simply doesn't open, and I take it back with Face ID.
What fills it
Apps built on Apple's Family Controls framework can do the allow-list version. Reef is one: you pick which apps stay usable, everything you didn't pick is shielded the moment you start it, and your child gets a hub of the games and websites you chose. It's free to download, the lock and PIN recovery are never paywalled, and it runs entirely on your device with no account. It's the same Apple framework underneath, arranged for the handover case rather than the whole-day case.
FAQ
Is there a guest mode on iPhone?
No. Unlike Android, iOS has no guest user account on iPhone. Shared iPad exists but it's an education and business feature, and it doesn't come to iPhone. The practical substitutes are Guided Access for a single app, or a Family Controls app that shields everything except an allow-list.
Can I lock my iPhone to more than one app?
Not with Guided Access, which is one app by design. You can do it with an app built on Apple's Family Controls framework, which shields every app you didn't allow while leaving your chosen ones openable from the Home Screen.
Which apps can't be blocked on iPhone, ever?
Phone, Messages, FaceTime and Clock sit in Screen Time's Always Allowed list by default, and Settings can't be shielded by any third-party app at all. You can remove Messages and FaceTime from Always Allowed yourself in Settings › Screen Time. Phone stays reachable so emergency calls always work.
Do I need a Screen Time passcode?
If your child is old enough to open Settings, yes. Without one, anyone can walk into Settings › Screen Time and switch the restrictions off — including restrictions set by a third-party app. It's the single most important setting for making any of this stick.
Hand over the phone, not the whole phone
Reef shields every app you didn't allow, gives your child a hub of the games and sites you chose, and needs your Face ID to switch off. Free to download — the shield, the PIN and passcode recovery are never paywalled.
Get Reef on the App StoreAbout ReefiOS behaviour described here was checked against iOS 26. Apple moves settings between releases — if a path doesn't match what you see, the feature is usually still there under a nearby name.